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Quantum Attacks on HCTR and Its Variants
2020
IEEE Transactions on Quantum Engineering
Recently, in Asiacrypt 2019, Bonnetain et al. have shown attacks by quantum adversaries on FX construction and Even-Mansour Cipher without using superposition queries to the encryption oracle. In this article, we use a similar approach to mount new attacks on Hash-Counter (HCTR) and Hash-Counter-Hash (HCH) constructions. In addition, we mount attacks on HCTR, tweakable-HCTR, and HCH using the superposition queries to the encryption oracle using strategies proposed by Leander and May in
doi:10.1109/tqe.2020.3041426
fatcat:3cqz4azmsbefjdtvlqd5wkejsq